Figure 1. The general arrangement of a three phase waveform.
National Pump Vertical Turbine Pumps, API 610
3800 Series, Single Stage End Suction
Impeller wear ring
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Well Pump Installation
Model 411 Horizontal Split Case
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2π/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
80 Series® Engine Driven
Horizontal Lathe
Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
Computer Numerical Control Machine (CNC) at Nickerson
Utah Lake Cascade Pump
Super T Series® Engine Driven
Close-Coupled Vertical Turbine
Vertical Lathe
Submersible Turbine Pumps
Horizontal Lathe
Model 342A Single Stage End Suction
Computer Numerical Control Machine (CNC) at Nickerson
Nickerson Field Crew
Machinist at Nickerson Company running a state-of-the-art CNC machine.
